Roof inlet gravity DrainBox DN125 vertical, with clamping ring and leaf basket HL63/2

Efficient roof drainage with DrainBox DN125

This DrainBox DN125 vertical gravity roof inlet is a reliable solution for draining water from corrugated roof structures. Designed by HL (Hutterer & Lechner), it combines functionality, durability and ease of installation. This is particularly important when designing water drainage systems, where efficiency and minimizing the risk of failure are crucial.

Design and application

The inlet is characterized by an adjustable height in the range of 100-160 mm, which allows for precise adjustment to the roof thermal insulation. Made of durable polypropylene, it provides resistance to weather conditions and long-term operation. Designed for DN125 spigot connections or HDPE welded systems, providing flexibility in component selection. The included clamping ring guarantees a tight and stable connection to the roof surface. A leaf basket effectively prevents the system from clogging with debris, minimizing the need for frequent inspections and maintenance.

Performance and advantages

DrainBox DN125 offers a flow rate of 12.20 l/s, making it suitable even for roofs with large surfaces. Its construction ensures not only effective water drainage, but also ease of cleaning and maintenance. Height adjustment makes it easy to install on different types of roofing, and a solid construction guarantees long-term reliability. This means that both installers and end-users can count on trouble-free system operation for many years.

• Versatility: Adapted to DN125 spigot connections and HDPE welded systems.
• Height adjustment: Range of 100-160 mm allows adjustment to roof thermal insulation.
• Effective protection: Leaf basket prevents clogging of the system with debris.
• Efficiency: Flow rate of 12.20 l/s ensures effective drainage of water even from large roof areas.
• Durability: Made of polypropylene resistant to weather conditions.
• Easy installation: Clamping ring ensures a tight and stable connection.